Thread: Help regarding choosing J2EE book for studying

Hello,
I have just completed studying core java using the book "The Complete Reference Java 7th edition" by Herbert Schildt.
I now wanted to start gaining knowledge in Java 2 Enterprise Edition (J2EE). I am having a book called Java Server programming
j2ee 1.4 black book by Kogent solution Inc. Simultaneously I googled and found out that Kogent solution Inc also has its next editions of black book like j2ee 1.5 and j2ee 1.6. SO i was i a dilemma as their content heading differs in certain topics. Does using
Kogent solution Inc's Java Server programming j2ee 1.6 black book covers all the topic of its previous edition of j2ee 1.5 and 1.6 black book?

Kindly help me in this regard and guide me which will be greatly appreciated.
And also which edition of j2ee is most popular and in demand ?

Thanks in advance.

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